Remove

Removes packages that are installed but no longer required.

Quit

I suggest running /etc/cron.daily/find at this point, because you have a
lot of new files on your system. Then you can use locate to get the
location of any given file.

A Few Hints in Conclusion

When the install process runs dselect for you, you will doubtless be eager
to get Debian running as soon as possible. Well, please be prepared to
take an hour or so to learn your way around and then get it right. When
you enter the Select screen for the first time, don't make any selections
at all - just press Enter and see what dependency problems there are. Try
fixing them. If you find yourself back at the main screen, run Select
again.

You can get an idea of the size of a package by pressing i twice and
looking for the ``Size'' figure. This is the size of the compressed
package, so the uncompressed files will be a lot bigger (see
``Installed-Size,'' which is in kilobytes, to know it).

Installing a new Debian system is a complex thing, but dselect can do it
for you as easy as can be. So take the time to learn how to drive it. Read
the help screens and experiment with i, I, o, and O. Use the R key. It's
all there, but it's up to you to use it effectively.